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4 years ago

Write an algebraic expression for the word phrase c divided by 7.

Mathematics

1 answer:

Y_Kistochka [10]4 years ago

5 0

Answer:

D. c/7

Step-by-step explanation:

An algebraic expression refers to the equation. In the question, it says to divide a number (c) by seven, giving you c/7

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Find the domain with these points

Lina20 [59]

Answer:

From these the domain is 3.5

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3 years ago

What is the independence and dependent variable? Also label the (x) and (y) axis.

Romashka [77]

Somebody is answering so good

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3 years ago

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Can someone please explain how this answer was produced?

Bingel [31]

Answer:

Step-by-step explanation:

First, we know that the sin function is odd which means:

sin(-x) = -sin(x).

Secondly evaluating an inverse trigonometric function with a normal trigonometric function as the argument can be rewritten as an algebraic expression.

Let $t = \sin(-\frac{11\pi}{4}) = - \sin(\frac{11\pi}{4})$

We know the certain identity.

$\sin(\theta) = \sin(2\pi + \theta)$

We use it to evaluate sin(11 pi / 4).

$\sin(\frac{11 \pi}{4}) = \sin({\frac{8\pi}{4} + \frac{3 \pi}{4}}) = \sin(2\pi + \frac{3 \pi}{4}) = \sin(\frac{3\pi}{4})$

Another helping identity is the following:

$\sin(\theta) = \sin(\pi - \theta)$

$\sin(\frac{3\pi}{4}) = \sin(\pi - \frac{3\pi}{4}) = \sin(\frac{\pi}{4}) = \frac{\sqrt{2}}{2}$

But let's not forget that t = -sin(11 pi/4) = - sqrt(2) / 2

Now we end up with the following equation.

$\cos^{-1}(-\frac{\sqrt{2}}{2}) = x\\\cos(x) = -\frac{\sqrt{2}}{2} => x = \frac{3\pi}{4}$

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3 years ago

6. A rectangle's width is one-third its length. If the width is 8 inches, what is the length of the

lyudmila [28]

Answer:

Step-by-step explanation:

8x3 is 24 because the length must be three times it's width

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2 years ago

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Which shows how the distributive property can be used to evaluate

Dennis_Churaev [7]

Answer:Hello,

Let's assume

a the lowest number

b the tallest.

HCF(a,b)=56

LCM(a,b)=1568

a*b=HCF*LCM=(2^5*7^2)*(2^3*7)=2^8*7^3

a=56*x

b=56*y

a*b=56²*x*y==>x*y=2^2*7

The numbers possible are (56*1,56*28),(56*2,56*14),(56*4,56*7)

(56*1,56*28)=(56,1568) is excluded.

(56*2,56*14)=(112,784) has like HCF=112 and not 56.

The answer is (56*4,56*7)=(224,392) which HCF is 56 and LCM=1568.

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3 years ago